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Hello, I noticed you helped "sahrasharshad" with the same work I need done. Can you please answer CASE 4 and properly list the answers to each letter clearly? 


In the Excel attachment, Please analyze ***COLUMN 10 (Resident population 65 years and over, percent (July 1) 2006)*** under the "dataset" worksheet after vetting the file in case 2 (explained in instructions).


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SCMA 301

 

Case 2

 

Vetting a File

 

For this case use the Excel data file ?US Census Data by County ? Class.? The

 

file shows various census statistics for each of the 3144 counties and

 

independent city census districts for the United States. The file contains 82 DataItems for each record. Descriptions of the Data-Items are on the Worksheet

 

Column Information by #.

 

You do not need to analyze all the fields, just the field or fields assigned to you.

 

Your assigned field or fields are on the first worksheet of the data file labeled

 

?Assignments.? Find your name in the first column. The second and third columns

 

show the field you are to analysis. If you do not see your name send me an email

 

and I?ll assign you fields.

 

For this case you are to do a preliminary scan of the file:

 

a. Is the data cross-sectional or time series?

 

b. What are the records?

 

c. What are the fields?

 

You are to calculate the mean or average value for the counties and independent

 

city census districts for your assigned field. However, before you do this you must

 

vet the files. Vetting a file means examining the data and eliminating or correcting

 

any records that appears to be in error. You only need to do this for your

 

assigned field. If you decide to eliminate any records eliminate the entire record

 

for all fields.

 

d. Explain all adjustments you made to the data.

 

e. What is the average or mean for your field after you have made any

 

necessary adjustments?

 


 

Reference:

 


 

Sharp, DeVeaux and Velleman: Chapter 1

 


 

 


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